Restore the braking power of your vehicle with A1 Cardone Brake Booster. This remanufactured brake booster guarantees 100 percent OE seals, diaphragms and check valves that are installed on each unit. Every unit is 100 percent vacuum tested to provide top class performance and reliability. This brake booster is also coated with an exclusive rust proof finish that prolongs usability. New mounting nuts and washers are included for easy and fast installation.